Touch panel, manufacturing method thereof and touch display device

Abstract

The present disclosure provides a touch panel, a manufacturing method thereof and a touch display device. In one embodiment, the method comprises the following steps: 1) forming touch lines, comprising: forming in the same layer gate lines and a plurality of first touch lines, each first touch line being arranged intermittently in a direction of data lines and not electrically connected with the gate lines, and forming in the same layer a plurality of first connection lines and electrodes which are not in the same layer as the gate lines and the touch electrodes, each first connection line being used for connecting in series with an intermittent first touch line, each touch line comprising a first touch line and a plurality of first connection lines; and 2) forming touch electrodes, each touch electrode being electrically connected with one or more first touch lines, one or more is second touch lines, or one or more third touch lines. Accordingly, the manufacturing process steps of a self-capacitance in-cell touch panel can be reduced and the process can be simplified.

The invention claimed is: 
     
       1. A touch panel comprising intersecting gate lines and data lines, touch electrodes and a plurality of touch lines, the gate lines and the data lines defining display pixels comprising pixel electrodes,
 wherein each touch line comprises a first touch line arranged intermittently in a direction of the data lines and not electrically connected with the gate lines, as well as a plurality of first connection lines used for connecting in series with an intermittent first touch line, the first touch line being arranged in the same layer as the gate lines, the plurality of first connection lines being arranged in the same layer as electrodes which are not in the same layer as the gate lines and the touch electrodes; or each touch line comprises a second touch line arranged intermittently in a direction of the gate lines and not electrically connected with the data lines, as well as a plurality of second connection lines used for connecting in series with an intermittent second touch line, the second touch lines being arranged in the same layer as the data lines, the plurality of second connection lines being arranged in the same layer as electrodes which are not in the same layer as the data lines and the touch electrodes; or each touch line is a third touch line arranged continuously, the third touch line being arranged in the same layer as pixel electrodes which are not in the same layer as the data lines and the gate lines; and 
 wherein each touch electrode is electrically connected with one or more first touch line, one or more second touch line or one or more third touch line. 
 
     
     
       2. The touch panel according to  claim 1 , each display pixel further comprising a gate, a drain and a source, the touch panel further comprising a gate insulating layer and a first insulating layer, wherein:
 the gate insulating layer is arranged between the source, the drain and the gate, and has a plurality of first via holes provided therein; 
 the plurality of first connection lines are arranged in the same layer as the source, the drain, the data lines and the pixel electrodes, each first connection line being connected in series with an intermittent first touch line via two corresponding first via holes; 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein; and 
 each touch electrode is electrically connected with one or more first touch lines via one or more second via holes. 
 
     
     
       3. The touch panel according to  claim 1 , each display pixel further comprising a gate, a drain and a source, the touch panel further comprising a gate insulating layer, a first insulating layer and a second insulating layer, wherein:
 the gate insulating layer is arranged between the source, the drain and the gate, and has a plurality of first via holes provided therein; 
 the second insulating layer is arranged between the source, the drain and the pixel electrodes, and has a plurality of third via holes and a plurality of fourth via holes provided therein, each pixel electrode and each drain being electrically connected via a corresponding third via hole; and 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein; and 
 wherein the fourth via holes are arranged to have a one-to-one correspondence with the second via holes, such that each first connection line is connected in series with an intermittent first touch line via two corresponding first via holes, and that each touch line is electrically connected with a corresponding touch electrode via one or more second via holes and one or more fourth via holes, if the plurality of first connection lines are arranged in the same layer as the source, the drain and the data lines; 
 the fourth via holes are arranged to have a one-to-one correspondence with the first via holes, such that each first connection line is connected in series with an intermittent first touch line via two corresponding first via holes and two corresponding fourth via holes, and that each first touch line is electrically connected with a corresponding touch electrode via one or more second via holes, if the plurality of first connection lines are arranged in the same layer as the pixel electrodes. 
 
     
     
       4. The touch panel according to  claim 1 , each display pixel further comprising a source and a drain, the touch panel further comprising a first insulating layer and a second insulating layer, wherein:
 the second insulating layer is arranged between the source, the drain and the pixel electrode, and has a plurality of third via holes and a plurality of fourth via holes provided therein, each pixel electrode and each drain being electrically connected via a corresponding third via hole; 
 the plurality of second connection lines are arranged in the same layer as the pixel electrodes, each second connection line being connected in series with an intermittent second touch line via two corresponding fourth via holes; and 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein, each touch electrode being electrically connected with one or more second touch lines via one or more second via holes. 
 
     
     
       5. The touch panel according to  claim 1 , each display pixel further comprising a source and a drain, the touch panel further comprising a first insulating layer and a second insulating layer, wherein:
 the second insulating layer is arranged between the source, the drain and the pixel electrodes, and has a plurality of third via holes provided therein, each pixel electrode and each drain being electrically connected via a corresponding third via hole; and 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein, each touch electrode being electrically connected with one or more third touch lines via one or more second via holes. 
 
     
     
       6. The touch panel according to  claim 2 , wherein each first touch line is provided with a plurality of via hole connection parts, each of which is located in a disconnection position of a corresponding first touch line in the vicinity of a gate line and protrudes in a direction of the gate line; the first via holes are arranged to have a one-to-one correspondence with the via hole connection parts; and each second via hole is arranged in a random position on a corresponding first connection line. 
     
     
       7. The touch panel according to  claim 3 , wherein each first touch line is provided with via hole connection parts, each of which is located in a disconnection position of a corresponding first touch line in the vicinity of a gate line and protrudes in a direction of the gate line; and
 the first via holes are arranged to have a one-to-one correspondence with the via hole connection parts, and each of the second via holes and the fourth via holes is arranged in a random position on a corresponding first connection line, if the plurality of first connection lines are arranged in the same layer as the source, the drain and the data lines; 
 each of the first via holes and the fourth via holes is arranged to correspond to a corresponding via hole connection part, and each of the second via holes is arranged in a random position on a corresponding first connection line, if the plurality of first connection lines are arranged in the same layer as the pixel electrodes. 
 
     
     
       8. The touch panel according to  claim 1 , wherein:
 the plurality of first connection lines are made of a same material as the electrodes which are not in the same layer as the gate lines and the touch electrodes, and the first touch lines are made of a same material as the gate lines; or 
 the second touch lines are made of a same material as the data lines, and the plurality of second connection lines are made of a same material as the electrodes which are not in the same layer as the data lines and the touch electrodes; or 
 the third touch lines are made of a same material as the pixel electrodes. 
 
     
     
       9. The touch panel according to  claim 1 , wherein the touch electrodes are reused as a common electrode of the display pixels. 
     
     
       10. A touch display device comprising the touch panel according to  claim 1 . 
     
     
       11. The touch display device according to  claim 10 , each display pixel further comprising a gate, a drain and a source, the touch panel further comprising a gate insulating layer and a first insulating layer, wherein:
 the gate insulating layer is arranged between the source, the drain and the gate, and has a plurality of first via holes provided therein; 
 the plurality of first connection lines are arranged in the same layer as the source, the drain, the data lines and the pixel electrodes, each first connection line being connected in series with an intermittent first touch line via two corresponding first via holes; 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein; and 
 each touch electrode is electrically connected with one or more first touch lines via one or more second via holes. 
 
     
     
       12. The touch display device according to  claim 10 , each display pixel further comprising a gate, a drain and a source, the touch panel further comprising a gate insulating layer, a first insulating layer and a second insulating layer, wherein:
 the gate insulating layer is arranged between the source, the drain and the gate, and has a plurality of first via holes provided therein; 
 the second insulating layer is arranged between the source, the drain and the pixel electrodes, and has a plurality of third via holes and a plurality of fourth via holes provided therein, each pixel electrode and each drain being electrically connected via a corresponding third via hole; and 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein; and 
 wherein the fourth via holes are arranged to have a one-to-one correspondence with the second via holes, such that each first connection line is connected in series with an intermittent first touch line via two corresponding first via holes, and that each touch line is electrically connected with a corresponding touch electrode via one or more second via holes and one or more fourth via holes, if the plurality of first connection lines are arranged in the same layer as the source, the drain and the data lines; 
 the fourth via holes are arranged to have a one-to-one correspondence with the first via holes, such that each first connection line is connected in series with an intermittent first touch line via two corresponding first via holes and two corresponding fourth via holes, and that each first touch line is electrically connected with a corresponding touch electrode via one or more second via holes, if the plurality of first connection lines are arranged in the same layer as the pixel electrodes. 
 
     
     
       13. The touch display device according to  claim 10 , each display pixel further comprising a source and a drain, the touch panel further comprising a first insulating layer and a second insulating layer, wherein:
 the second insulating layer is arranged between the source, the drain and the pixel electrode, and has a plurality of third via holes and a plurality of fourth via holes provided therein, each pixel electrode and each drain being electrically connected via a corresponding third via hole; 
 the plurality of second connection lines are arranged in the same layer as the pixel electrodes, each second connection line being connected in series with an intermittent second touch line via two corresponding fourth via holes; and 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein, each touch electrode being electrically connected with one or more second touch lines via one or more second via holes. 
 
     
     
       14. The touch display device according to  claim 10 , each display pixel further comprising a source and a drain, the touch panel further comprising a first insulating layer and a second insulating layer, wherein:
 the second insulating layer is arranged between the source, the drain and the pixel electrodes, and has a plurality of third via holes provided therein, each pixel electrode and each drain being electrically connected via a corresponding third via hole; and 
 the first insulating layer is arranged between the pixel electrodes and the touch electrodes, and has a plurality of second via holes provided therein, each touch electrode being electrically connected with one or more third touch lines via one or more second via holes. 
 
     
     
       15. The touch display device according to  claim 11 , wherein each first touch line is provided with a plurality of via hole connection parts, each of which is located in a disconnection position of a corresponding first touch line in the vicinity of a gate line and protrudes in a direction of the gate line; the first via holes are arranged to have a one-to-one correspondence with the via hole connection parts; and each second via hole is arranged in a random position on a corresponding first connection line. 
     
     
       16. The touch display device according to  claim 12 , wherein each first touch line is provided with via hole connection parts, each of which is located in a disconnection position of a corresponding first touch line in the vicinity of a gate line and protrudes in a direction of the gate line; and
 the first via holes are arranged to have a one-to-one correspondence with the via hole connection parts, and each of the second via holes and the fourth via holes is arranged in a random position on a corresponding first connection line, if the plurality of first connection lines are arranged in the same layer as the source, the drain and the data lines; 
 each of the first via holes and the fourth via holes is arranged to correspond to a corresponding via hole connection part, and each of the second via holes is arranged in a random position on a corresponding first connection line, if the plurality of first connection lines are arranged in the same layer as the pixel electrodes. 
 
     
     
       17. The touch display device according to  claim 10 , wherein:
 the plurality of first connection lines are made of a same material as the electrodes which are not in the same layer as the gate lines and the touch electrodes, and the first touch lines are made of a same material as the gate lines; or 
 the second touch lines are made of a same material as the data lines, and the plurality of second connection lines are made of a same material as the electrodes which are not in the same layer as the data lines and the touch electrodes; or 
 the third touch lines are made of a same material as the pixel electrodes. 
 
     
     
       18. The touch display device according to  claim 10 , wherein the touch electrodes are reused as a common electrode of the display pixels.